/*[Input("Size",DefaultValues= new double[] { 1,1,1})]
IDiffSpread<Vector3> FSize;*/
protected override DX11IndexedGeometry GetGeom(DX11RenderContext context, int slice)
{
Octahedron oct = new Octahedron();
oct.Size = new Vector3(1, 1, 1);
return context.Primitives.Octahedron(oct);
}
public DX11IndexedGeometry Octahedron(Octahedron settings)
{
OctahedronBuilder builder = new OctahedronBuilder();
ListGeometryAppender appender = new ListGeometryAppender();
PrimitiveInfo info = builder.GetPrimitiveInfo(settings);
builder.Construct(settings, appender.AppendVertex, appender.AppendIndex);
return(FromAppender(settings, appender, info));
}
public DX11IndexedGeometry Octahedron(Octahedron settings)
{
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.PrimitiveType = settings.PrimitiveType;
geom.Tag = settings;
geom.VerticesCount = 6;
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.Topology = PrimitiveTopology.TriangleList;
DataStream ds = new DataStream(6 * Pos3Norm3Tex2Vertex.VertexSize, false, true);
Pos3Norm3Tex2Vertex v = new Pos3Norm3Tex2Vertex();
Vector3 size = settings.Size;
v.Position = Vector3.Normalize(new Vector3(1.0f, 0, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-1.0f, 0, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 1.0f, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, -1.0f, 0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 0, -1.0f)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0, 0, 1.0f)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write <Pos3Norm3Tex2Vertex>(v);
geom.VertexBuffer = BufferHelper.CreateVertexBuffer(context, ds, true);
var indexstream = new DataStream(24 * 4, true, true);
int[] inds = new int[] {
0, 4, 2,
0, 2, 5,
0, 3, 4,
0, 5, 3,
1, 2, 4,
1, 5, 2,
1, 4, 3,
1, 3, 5
};
indexstream.WriteRange(inds);
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-1, -1, -1), new Vector3(1, 1, 1));
return(geom);
}
public DX11IndexedGeometry Octahedron(Octahedron settings)
{
DX11IndexedGeometry geom = new DX11IndexedGeometry(context);
geom.PrimitiveType = settings.PrimitiveType;
geom.Tag = settings;
geom.VerticesCount = 6;
geom.InputLayout = Pos3Norm3Tex2Vertex.Layout;
geom.VertexSize = Pos3Norm3Tex2Vertex.VertexSize;
geom.Topology = PrimitiveTopology.TriangleList;
DataStream ds = new DataStream(6 * Pos3Norm3Tex2Vertex.VertexSize, false, true);
Pos3Norm3Tex2Vertex v = new Pos3Norm3Tex2Vertex();
Vector3 size = settings.Size;
v.Position = Vector3.Normalize(new Vector3(1.0f,0,0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(-1.0f,0,0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0,1.0f,0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0,-1.0f,0)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0,0,-1.0f)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
v.Position = Vector3.Normalize(new Vector3(0,0, 1.0f)) * 0.5f; v.Normals = v.Position * 2.0f; v.TexCoords = new Vector2(0, 0); ds.Write<Pos3Norm3Tex2Vertex>(v);
geom.VertexBuffer = BufferHelper.CreateVertexBuffer(context, ds, true);
var indexstream = new DataStream(24 * 4, true, true);
int[] inds = new int[] {
0,4,2,
0,2,5,
0,3,4,
0,5,3,
1,2,4,
1,5,2,
1,4,3,
1,3,5 };
indexstream.WriteRange(inds);
geom.IndexBuffer = new DX11IndexBuffer(context, indexstream, false, true);
geom.HasBoundingBox = true;
geom.BoundingBox = new BoundingBox(new Vector3(-1, -1, -1), new Vector3(1, 1, 1));
return geom;
}
